<!DOCTYPE html>
<html lang="en" xmlns:th="http://www.thymeleaf.org">
<head>
    <meta charset="UTF-8">
    <title>Title</title>
</head>
<body>

    <p th:text="${errorInfo}" th:if="${!#strings.isEmpty(errorInfo)}" style="color:red"></p>
    <form th:action="@{/user/login}" method="post">
        username :<input type="text" name="username"/>  <p />

        password :<input type="password" name="password" />  <p />

        <input type="submit" value="登 录" />
    </form>

</body>
</html>